AVS 66th International Symposium & Exhibition
    Manufacturing Science and Technology Group Wednesday Sessions
       Session MS-WeA

Invited Paper MS-WeA1
The Importance of Modifying the Nothing Within 3D Electrode Architectures for Solid-State Energy Storage

Wednesday, October 23, 2019, 2:20 pm, Room A226

Session: Science and Technology for Manufacturing: Solid State Batteries (ALL INVITED SESSION)
Presenter: Debra Rolison, U.S. Naval Research Laboratory
Authors: D.R. Rolison, U.S. Naval Research Laboratory
M.B. Sassin, U.S. Naval Research Laboratory
C.N. Chervin, U.S. Naval Research Laboratory
J.F. Parker, U.S. Naval Research Laboratory
J. Long, U.S. Naval Research Laboratory
Correspondent: Click to Email

Our team has found that an architectural design metaphor serves as a powerful guide in re-imagining materials and electrodes in electrochemical energy science [1,2]. Key consumer and military portable power sources (e.g., batteries, fuel cells, supercapacitors) must balance multiple functions (molecular mass transport, ionic/electronic/thermal conductivity, and electron-transfer kinetics) even though these functions often require contradictory structures [2]. The design and fabrication of size- and energy-scalable three-dimensional multifunctional architectures from the appropriate nanoscale building blocks for charge storage seamlessly embodies all of the requisite functions. A critical knob to turn to amplify performance—or move to a new performance curve, such as a 3D solid-state battery with interpenetrating components [2,3]—is the ability to “paint blind,” to modify interiors with functional materials that do not block the internal porosity through which reactants enter and products depart. Architecture also matters with the electrocatalysts under exploration to improve oxygen redox (higher activity and lower potential energy costs to drive the reaction) in air cathodes in aqueous metal–air batteries Expressing oxygen reduction or evolution electrocatalysts in ultraporous aerogel form allows us to extract higher activity at lower overpotentials [4–6], further underscoring the importance of nothing and the unimportance of periodicity in energy-relevant nanoarchitectures [7].

[1] J.W. Long, D.R. Rolison, Acc. Chem. Res. 2007, 40, 854–862.

[2] D.R. Rolison, J.W. Long, J.C. Lytle, A.E. Fischer, C.P. Rhodes, T.M. McEvoy, M.E. Bourg, A.M. Lubers, Chem. Soc. Rev. 2009, 38, 226–252.

[3] J.W. Long, B. Dunn, D.R. Rolison, and H.S. White, Chemical Reviews2004, 104, 4463–4492.

[4] C.N. Chervin, P.A. DeSario, J.F. Parker, E.S. Nelson, D.R. Rolison, J.W. Long, ChemElectroChem 2016, 3, 1369–1375.

[5] J . S. Ko, C . N. Chervin, M . N. Vila, P . A. DeSario, J . F. Parker, J . W. Long, D . R. Rolison, Langmuir2017, 33, 9390–9397.

[6] J . S. Ko, J . F. Parker, M . N. Vila, M . A. Wolak, D . R. Rolison, and J . W. Long, J. Electrochem. Soc.2018, 165, H777–H783.

[7] D.R. Rolison, Science 2003, 299, 1698–1701.